HGUC Guncannon Mass Pro. Ground Type: (Custom Work) No.17 Large Images 3 May 2012 by Gunjap HGUC Guncannon Mass Pro. Ground Type: (Custom Work) No.17 Large Images HGUC RX-77D 量産型ギャンキャノン 地上戦特化型 Work by ガンプラ-manufacture (hwqbm181)